Question
If 15 oranges cost Rs. 110, what do 39 oranges cost?
✓
Answer
Cost of 15 oranges = Rs. 110
Cost of 1 orange $=\text{Rs.}\ \frac{110}{15}$
And cost of 39 oranges $=\text{Rs.}\ \frac{110}{15}\times39$
= Rs. 22 × 13 = Rs. 286
Cost of 1 orange $=\text{Rs.}\ \frac{110}{15}$
And cost of 39 oranges $=\text{Rs.}\ \frac{110}{15}\times39$
= Rs. 22 × 13 = Rs. 286
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